Section 11. If the offeror or a target company is an insurance company subject to regulation under chapter one hundred and seventy-five to chapter one hundred and seventy-five C, inclusive, the commissioner of insurance shall for all purposes of this section be substituted for the secretary. This section shall not be construed to limit or modify in any way any responsibility, authority, power, or jurisdiction of the secretary or the commissioner of insurance pursuant to any other provisions of law.